公开(公告)号：US11504738B2

公开(公告)日：2022-11-22

申请号：US17009315

申请日：2020-09-01

Applicant: IHI Corporation ,  TOCALO Co., Ltd

Inventor： Naoki Sato ,  Nobuhiko Kubota ,  Koki Hamada ,  Tatsuo Suidzu ,  Kazuhiro Takeuchi

IPC: B05D1/02 ,  B05D3/02 ,  B05D5/00 ,  F27D1/00

Abstract: A coating is formed on a surface of a base material of a furnace, and includes a base layer and a sliding material layer that is formed on a surface of the base layer and contains an oxide ceramic and a compound having a layered crystal structure. The sliding material layer causes the collided ashes to be slipped and facilitates the drop off of the adhered ashes. The base material forms a heat transfer tube or a wall surface of the furnace. The coating is also applied to a coal gasification furnace, a pulverized coal fired boiler, a combustion apparatus, or a reaction apparatus containing a furnace.

公开(公告)号：US10088236B2

公开(公告)日：2018-10-02

申请号：US15116778

申请日：2015-10-02

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION ,  TOCALO CO., LTD.

Inventor： Yasushi Kurisu ,  Tatsuo Suidzu

IPC: F27D3/02 ,  B65H27/00 ,  C23C4/06 ,  C21D9/56 ,  C23C4/10 ,  C23C4/18 ,  C22C29/02 ,  C23C22/24 ,  C23C28/00 ,  C22C29/06 ,  F27B9/30 ,  F27B9/28

Abstract: A hearth roll includes a base roll, a thermally sprayed coating formed on the base roll, and a modified coating formed on the thermally sprayed coating. The modified coating is formed by modifying a part or the whole of a surface of the thermally sprayed coating by melting and solidification of the thermally sprayed coating, by irradiating a part or the whole of the surface of the thermally sprayed coating with an energy beam. The thickness of the modified coating is from 2 to 20 μm, and the Vickers hardness HV of the modified coating is from 1.2 to 1.4 times larger than the Vickers hardness HV of the thermally sprayed coating.

公开(公告)号：US20240043982A1

公开(公告)日：2024-02-08

申请号：US18266481

申请日：2021-11-18

Applicant: TOCALO Co., Ltd. ,  FUJIMI INCORPORATED

Inventor： Yasuhiro Shiojiri ,  Tatsuo Suidzu ,  Kensuke Taguchi ,  Hiroaki Mizuno ,  Takaya Masuda

IPC: C23C4/04 ,  H01J37/32

CPC classification number: C23C4/04 ,  H01J37/32477 ,  C23C4/134

Abstract: There is provided a thermal spray coating which has excellent plasma erosion resistance, which protects members of a plasma etching device from plasma erosion over a long period of term, and which can contribute to the stable production of devices and a longer life of members. The thermal spray material which is one aspect of this invention contains a composite compound containing a rare earth fluoride in the proportion of 40 mol % or more and 80 mol % or less, a magnesium fluoride in the proportion of 10 mol % or more and 40 mol % or less, and a calcium fluoride in the proportion of 0 mol % or more and 40 mol % or less.

公开(公告)号：US11131014B2

公开(公告)日：2021-09-28

申请号：US15568445

申请日：2016-03-23

Applicant: TOCALO CO., LTD.

Inventor： Hiroki Yokota ,  Daisuke Kawai ,  Tatsuo Suidzu

IPC: B23K26/00 ,  C23C4/02 ,  B23K26/352 ,  C23C28/04 ,  C23C8/10 ,  C23C8/02 ,  C23C8/80 ,  C23C4/134

Abstract: A ceramic substrate is irradiated in an atmospheric air with a laser having a power density of 1.0×107-1.0×109 W/cm2 for an action time on an irradiation area of 1.0×10−7-1.0×10−5 s to roughen a surface of the ceramic substrate, as well as to form an oxide layer on a roughened surface. A thermal sprayed coating formed on the ceramic substrate sufficiently adheres to the ceramic substrate via the oxide layer.

公开(公告)号：US10900111B2

公开(公告)日：2021-01-26

申请号：US15746795

申请日：2016-06-27

Applicant: TOCALO CO., LTD.

Inventor： Hiroki Yokota ,  Tatsuya Fukushi ,  Tatsuo Suidzu

IPC: C23C4/129 ,  C23C4/08 ,  C23C4/18

Abstract: A method for producing a surface-modified component includes: a process of forming a thermal sprayed coating on a substrate; a process of irradiating a surface of the thermal sprayed coating with a high energy beam so as to cause an entirety of the thermal sprayed coating and a part of the substrate in a thickness direction to melt and then solidify, and thereby forming a densified modified layer; a process of forming a thermal sprayed coating on the modified layer which has been formed in the latest; and a process of irradiating a surface of the thermal sprayed coating with a high energy beam so as to cause an entirety of the thermal sprayed coating and a part of the modified layer which has been formed in the latest in the thickness direction to melt and then solidify, and thereby forming a densified modified layer.

公开(公告)号：US10605300B2

公开(公告)日：2020-03-31

申请号：US15522743

申请日：2015-10-28

Applicant: FUJIMI INCORPORATED ,  TOCALO CO., Ltd.

Inventor： Noriyuki Yasuo ,  Takeshi Takabatake ,  Tatsuo Suidzu ,  Hiroaki Mizuno ,  Takaya Masuda ,  Tatsuya Kuno

IPC: F16C13/00 ,  C23C4/10 ,  C23C2/00 ,  C23C4/129 ,  C23C4/067 ,  C22C29/02 ,  C22C1/10 ,  C23C4/06 ,  C23C4/12

Abstract: A thermal spray powder is provided that contains, as constituent elements, a first element selected from W and Mo; a second element selected from Co, Ni, and Fe; a third element selected from C and B; and a fourth element formed of Si. The amount of the second element in the thermal spray powder is 40% by mole or less. The mole ratio of the fourth element to the second element in the thermal spray powder is 0.002 or greater and 0.03 or less. The thermal spray powder has a crystal phase containing Co, Ni, or Fe; W; and C or a crystal phase containing Co, Ni, or Fe; W or Mo; and B. In an X-ray diffraction spectrum of the thermal spray powder, the peak intensity attributed to Co, Ni, or Fe is at most 0.1 times the largest peak intensity in the same X-ray diffraction spectrum.

公开(公告)号：US10539176B2

公开(公告)日：2020-01-21

申请号：US15522703

申请日：2015-10-28

Applicant: FUJIMI INCORPORATED ,  TOCALO CO., Ltd.

Inventor： Tatsuo Suidzu ,  Noriyuki Yasuo ,  Takeshi Takabatake ,  Hiroaki Mizuno ,  Takaya Masuda ,  Tatsuya Kuno

IPC: C23C4/06 ,  C23C4/10 ,  C23C4/12 ,  C23C4/129 ,  C23C4/067 ,  F16C13/00 ,  C22C29/08 ,  C22C19/00 ,  C22C19/07 ,  C22C29/14 ,  C22C1/10 ,  C25D17/06

Abstract: A thermal spray powder is provided that contains, as constituent elements, a first element selected from W and Mo; a second element selected from Co, Ni, and Fe; a third element selected from C and B; and a fourth element selected from Al and Mg. The amount of the second element in the thermal spray powder is 20% by mole or greater. The mole ratio of the fourth element to the second element in the thermal spray powder is 0.05 or greater and 0.5 or less. The thermal spray powder has a crystal phase containing Co, Ni, or Fe; W; and C or a crystal phase containing Co, Ni, or Fe; W or Mo; and B. In an X-ray diffraction spectrum of the thermal spray powder, the peak intensity attributed to Co, Ni, or Fe is at most 0.1 times the largest peak intensity in the same X-ray diffraction spectrum.